Work

Experimental study on the leakage identification for the buried gas pipeline via vibration signals

Year: 2024

Type: article

Abstract: It is difficult to detect and locate small leakages, especially for buried pipelines. Therefore, a non-intrusive leakage identification method for buried gas pipelines is proposed in this study. Accelerometers were arranged in the soil at a certain distance from the leakage orifice to capture the acceleration signals caused by leakage. A 7-layer wavelet transform was applied to extract the leakage characteristic frequency band. Meanwhile, the attenuation characteristics of vibration signals were analyzed and the signal amplitude attenuation patterns in the axial, radial, and circumferential directions were analyzed. The results show that the leakage recognition rate is nearly 100% by selecting a peak signal-to-noise ratio (P-SNR) threshold of 7.26. Thus, the non-intrusive method based on accelerometers can be successfully applied for the leakage monitoring of buried gas pipelines.

Source: Journal of Pipeline Science and Engineering

DOI: 10.1016/j.jpse.2024.100230

Authors: Xiugang Chen, Cuiwei Liu, Kang Xiao, Wenjie Liu, Tao Gu, Yuxing Li

Institutions: Shandong Special Equipment Inspection Institute, China University of Petroleum, East China

Language: English

Topic: Water Systems and Optimization

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: diamond

Funders: Key Technologies Research and Development Program, National Key Research and Development Program of China